I liked the exotic setting of the book, and actually preferred it to the Riordan series, which was so jam-packed with myths and monsters that I was unfamiliar with that I had a tendency to get lost. With fewer characters and ancient stories to keep up with, I could appreciate the mythology lesson better. And this book (the first of a new series) places much more attention on the relationship than just on the action. While the crux of the book is the Lily-Amon relationship, I was more interested in the triad of the brothers and how each interacted with Lily. There are lots of YA romances, but fewer explorations of the love between brothers (especially those associated with ancient Egyptian gods) and how a female in the mix can change everything.
It had lovely imagery, interesting characters, not too-frenetic action, and a good brush-up on Egyptian history, culture, and, of course, mythology. So I found it to be a good read.